/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.evaluation.value;

/**
 * This IntegerValue represents the result of a binary operation on two integer values.
 *
 * @author Eric Lafortune
 */
final class CompositeIntegerValue extends SpecificIntegerValue {
    public static final byte ADD = '+';
    public static final byte SUBTRACT = '-';
    public static final byte MULTIPLY = '*';
    public static final byte DIVIDE = '/';
    public static final byte REMAINDER = '%';
    public static final byte SHIFT_LEFT = '<';
    public static final byte SHIFT_RIGHT = '>';
    public static final byte UNSIGNED_SHIFT_RIGHT = '}';
    public static final byte AND = '&';
    public static final byte OR = '|';
    public static final byte XOR = '^';

    private final IntegerValue integerValue1;
    private final byte operation;
    private final IntegerValue integerValue2;

    /**
     * Creates a new composite integer value of the two given integer values and the given operation.
     */
    public CompositeIntegerValue(IntegerValue integerValue1, byte operation, IntegerValue integerValue2) {
        this.integerValue1 = integerValue1;
        this.operation = operation;
        this.integerValue2 = integerValue2;
    }

    // Implementations for Object.

    public boolean equals(Object object) {
        return this == object
            || super.equals(object) && this.integerValue1.equals(((CompositeIntegerValue)object).integerValue1)
                && this.operation == ((CompositeIntegerValue)object).operation
                && this.integerValue2.equals(((CompositeIntegerValue)object).integerValue2);
    }

    public int hashCode() {
        return super.hashCode() ^ integerValue1.hashCode() ^ integerValue2.hashCode();
    }

    public String toString() {
        return "(" + integerValue1 + ((char)operation) + integerValue2 + ")";
    }
}